Lock



Deg. 4, 1934.

E. N. JACOB] LOCK Filed July 20, 1932 Patented Dec. 4, 1934 LOCK EdwardNi Jacobi, Milwaukee, Wis., assignorto Briggs & Stratton Corporation,Milwaukee, Wis., a corporation of Delaware Application, July 20, 1932,Serial No. 623,473

' 3 Claims.

This invention relates to certain new and useful improvements in locksand refers more particularly to looks especially adapted to securefabric bags and similar containers closed.

Incontainers of this character, and especially fabric money bags, theopen top is closed by folding down the upper end portion of the bag andsecuring the folded portion against displace ment by some lock means.Heretofore, the means provided for this purpose usually consisted of apin inserted through aligned apertures in the downturned upper portionof the bag, and a padlock having its bail passed through an aperture inthe end of the pin to prevent its retraction.

The present invention contemplates means for locking a bag of thisnature closed, whereby the use of a padlock is obviated and the lockingfunction is obtained by means of a conventional tumbler lock.'

Another object of this invention is to provide a tumbler look of suchconstruction as to permit the passage of its casing through the alignedopenings of the bag to be held therein by an enlargement on theremovable key plug.

Stated more broadly, it is an object of this invention to provide atumbler lock comprising a barrel or casing and a removablekey plug,

with means for holding two or more elements.

against separation when the plug is in'sertedinto the casing. I 4

And a further object of this invention resides in theprovisionof lockmeans for securing a money bag or similar receptacleclosed, in which aconventional lock barrel or casing is carried by one of a pair of flapsor straps sewed to the bag and arranged to extend over the downturned orfolded, open end portion, to be passed through the aligned openings inthe bag and be there secured by the insertion of a key plug into thecasing, the plug having an enlarged flange and being passed through anopening: in the other of the pair of straps.

With the above and other objects in view which will appear as thedescription proceeds, my invention resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed and more particularly def ned bythe appended claims, it beingunderstood that such changes in the precise embodiment of thehereindisclosed invention may be made as come within the scope of theclaims.

In the accompanying drawing, I have illustrated one complete example ofthe physical embodiment of my invention constructed according to thebest mode I have so far devised for the practical application of theprinciples thereof, and in which:

Figure 1 is a perspective view illustrating a portion of a conventionalmoney bag equipped with this invention; 1

Figure 2 is a top view of the bag showing the same with its open endturned down and secured in closed position, parts of said view beingbroken away and in section;

Figure 3 isa longitudinal section view through the lock barrel orcasing;

Figure 4 is a side elevation of the key plug;

Figure 5 is a cross section through the lock barrel taken on the planeof the line 5--5 of Figure 3; and

Figure 6 is a cross section through, the key plug taken on the plane ofthe line 6-6 of Figure 4.

Referring now more particularly to theaccompanying drawing in which likenumerals indicate like parts throughout the severalviews, thenumeral 5represents a fabric bag ofany desired shape or design. The open end 6 ofthe bag is reinforced by a band '7, to which oppositely extending straps8' and 9 are secured. These straps may be formed'of' any suitablematerial such as leather or a heavyfabric and if desired maybe providedwith a flexible metal strip embedded therein.

Formed in the reinforcing band '1 substantially midway between thepoints of connection of the straps 8 and 9 with the band, are oppositelydisposed openings 10 provided with grommets 11 attached in the usualmanner. The opposite walls 12 and 13 of the bag inwardly of thereinforcing band 7 also have openings 14 which are protected by grommets15.

The openings 14 are directly opposite each other and are positionedinline with the openings 10 in the reinforcing band, so that when theopen end of the bag is turned down as'illustrated in dotted lines inFigure 1, all of the openings may be aligned.

By turning'down the bag in this manner, its open end is effectivelyclosed and to secure the same in this position the straps 8 and 9 arefolded over, as illustrated in Figure 2, with the strap "8 lyingagainstthe wall 12 of thebag and the strap 9 positioned over the reinforcingstrip 7. With the straps 8 and 9 in this position their free endportions cover the aligned openings 10 and 14.

The strap 9 has secured thereto a lock barrel or casing 16 which isadapted to be passed through the aligned openings 10 and 14 and alsothrough an opening 17 in the outer end portion of the strap 8, andprovided with a grommet 18. The lock barrel 16 is held in its positionextended through the aligned openings by the insertion-of a key plug 19into the barrel, the key plug having an enlarged flange 20 to overliethe peripheral edge of the opening 1'7.

The specific manner in which the lock barrel 16 is secured to the strap9, its construction, and the construction of the key plug, are bestillustrated in Figures 3 to 6 inclusive.

As here shown, the lock barrel 16 has a longitudinal bore 21 open at oneend, but closed at its other end by a wall 22. Projected from the wall22 is an annular flange 23 which is adapted to pass through an opening24 formed in the strap 9. A flange 25 encircling the barrel adjacent thewall 22 serves as an abutment against which the peripheral edge portionof the opening 24 in the strap 9, is clamped by peening the outer end ofthe annular flange 23 over the marginal edge of the opening 24. Thebarrel is thus rigidly secured to the strap 9.

Communicating with the bore 21 in the barrel are two diametricallyopposite tumbler receiving grooves 26 and an annular channel 27, for apurpose to be later described.

The key plug 19 is insertable into the bore 21 of the barrel and carriesa plurality of key operable tumblers 28 spring pressed to yieldablyproject one end into one of the tumbler receiving grooves 26 uponalignment therewith and withdrawal of a key 29 which is inserted intothe key plug to retract the tumblers as is customary. Obviously, whenthe key plug is in the barrel and the tumblers are projected -into,oneof the grooves 26, rotation of the plug is prevented.

Retraction of the plug 19 from the casing is prevented by the engagementof diametrically opposite lugs 30 formed on the key plug, in the annularchannel 27. The engagement of the lugs 30 in the channel 2'7 is effectedthrough the open ends of the tumbler grooves 26.

It is observed that the lugs 30 lie in a transverse plane substantiallyat right angles to the plane of the longitudinal axes of the tumblers,so that after the key plug is inserted into the barrel and its lugs 30are aligned with the annular channel 27 through the open ends of thegrooves 26, rotation is required on the part of the plug to align thetumblers with the grooves.

It is evident that during the insertion of the key plug into the barrel,the key 29 must be in place holding the tumblers fully retracted so thatrotation of the plug is possible. After the tumblers are properlyaligned with the grooves, the key 29 1s withdrawn.

Consequently, the plug is locked against removal from the casing and maybe withdrawn only with the aid of a proper key.

From the foregoing description taken in connection with the accompanyingdrawing, it will be readily apparent to one skilled in the art that thisinvention affords a novel lock for securing a fabric bag or similarcontainer closed, and while the lock has been shown in conjunction withone specific type of bag, it is obvious that it is adapted to manydifferent uses and may be employed wherever two or more elements, andparticularly fabric pieces, are to be locked against separation.

Where the lock is designed for general utility, the barrel or casing 16instead of being fastened to a strap may be provided with an enlargedflange similar to the flange 20 on the key plug. The two flanges willthus serve as abutments between which the members to be locked togetherare confined.

What I claim as my invention is:

1. In a lock for a bag, the combination of a lock casing having a boresubstantially closed at its inner end and open at its outer end andprovided with a longitudinal tumbler groove communicating with atransverse groove to form a bayonet slot, means securing said casing toone portion of the bag, a key plug passing partially through an openingin another portion of the bag and readily insertable and removable fromthe bore of the casing through the open outer end thereof, meanspreventing said key plug from passing entirely through said opening inthe bag, a lug carried by the plug and engageable in the bayonet slot tohold the cylinder in the casing, said engagement of the lug in thebayonet slot necessitating rotation of the plug, and key operabletumblers to prevent rotation of the plug in the casing so thatretraction of the plug from the lock casing necessitates the use of aproper key.

2. Ina lock for a bag, the combination of a lock casing having alongitudinal tumbler groove communicating with a transverse groove toform a bayonet slot, said casing passing partially through an opening inthe bag, a shoulder on the casing to prevent the casing from passingentirely through said opening in the bag, a key plug passing partiallythrough an opening in another portion of the bag and insertable into thecasing, a shoulder on the key plug to prevent the plug from passingentirely through the opening into which it is inserted, a lug carried bythe plug and engageable in the bayonet slot to hold the plug in thecasing, said engagement of the lug in the bayonet slot necessitatingrotation of the plug, and key-operable tumblers to prevent rotation ofthe plug in the casing so that retraction of the plug from the casingnecessitates the use of a proper key.

3. A lock of the character described, comprising a bored casing having alongitudinal tumbler groove and an annular channel in communication withthe bore and with each other, the tumbler groove opening to the open endof the bore, a key plug insertable into the casing,

key operable tumblers carried by the key plug and engageable withthelongitudinalgroove in the casing to secure the plug against rotation,said tumblers being retractable to free the plug for rotation upon theinsertion of a proper key into the plug, and 2. lug carried by the keyplug and insertable into the annular channel through the longitudinalgroove, said lug being out of line with the tumblers so that alignmentof the tumblers with the longitudinal groove after the lug is insertedinto the annular channel necessiates rotation of the plug and withdrawalof the plug requires the use of a proper key. I

EDWARD N. JACOBI.

